Secant lines & average rate of change with arbitrary points

Problem

What is the average rate of change of the function g(x)=sin(x)g(x)=\sin(x)g(x)=sin(x)g, left parenthesis, x, right parenthesis, equals, sine, left parenthesis, x, right parenthesis over the interval 1≤x≤1+h1\le x \le1+h1≤x≤1+h1, is less than or equal to, x, is less than or equal to, 1, plus, h?